[--------- Tue 12.Mar'13 at 9:24:55 +0000 To misc@openbsd.org :---------]
> Hi
>
> I wondered if someone would be kind enough to explain some dmesg output
> I do not understand.
>
> This is the output:
>
>
> pciide0 at pci0 dev 3 function 2 "Intel Q45 PT IDER" rev 0x03: DMA
> (unsupported), channel 0 wired to native-PCI, channel 1 wired to native-PCI
> pciide0: using apic 2 int 18 for native-PCI interrupt
> pciide0: channel 0 ignored (not responding; disabled or no drives?)
> pciide0: channel 1 ignored (not responding; disabled or no drives?)
>
> I'm using The March 1st snapshot/ amd64.
>
> The system operates perfectly so I'm sure I simply just ignore this but
> I am merely curious to understand what it means. Also, If perhaps I need
> to modify something if it means there is a problem.
>
> I'm sorry for asking such a newbie-type question. I have read several
> man pages, including pci(4) pciide(4) and looked at google but I feel
> it's a hardware topic that's a bit advanced for me at this stage as i'm
> still very much in the learning process with OpenBSD and topics like
> this.
>
> Thanks for any information or references you might be able to provide.
>
> Cheers, Jamie.
just to add, as I forgot to add it to the OP, is pcidump:
Domain /dev/pci0:
0:0:0: Intel Q45 Host
0x0000: Vendor ID: 8086 Product ID: 2e10
0x0004: Command: 0106 Status ID: 2090
0x0008: Class: 06 Subclass: 00 Interface: 00 Revision: 03
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR empty (00000000)
0x0014: BAR empty (00000000)
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR empty (00000000)
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00
0x00e0: Capability 0x09: Vendor Specific
0:2:0: Intel Q45 Video
0x0000: Vendor ID: 8086 Product ID: 2e12
0x0004: Command: 0007 Status ID: 0090
0x0008: Class: 03 Subclass: 00 Interface: 00 Revision: 03
0x000c: BIST: 00 Header Type: 80 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR mem 64bit addr: 0x00000000fc000000/0x00400000
0x0018: BAR mem prefetchable 64bit addr: 0x00000000e0000000/0x10000000
0x0020: BAR io addr: 0x00001c70/0x0008
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 01 Line: 03 Min Gnt: 00 Max Lat: 00
0x0090: Capability 0x05: Message Signaled Interrupts (MSI)
0x00d0: Capability 0x01: Power Management
0:2:1: Intel Q45 Video
0x0000: Vendor ID: 8086 Product ID: 2e13
0x0004: Command: 0007 Status ID: 0090
0x0008: Class: 03 Subclass: 80 Interface: 00 Revision: 03
0x000c: BIST: 00 Header Type: 80 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR mem 64bit addr: 0x00000000fc400000/0x00100000
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR empty (00000000)
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00
0x00d0: Capability 0x01: Power Management
0:3:0: Intel Q45 HECI
0x0000: Vendor ID: 8086 Product ID: 2e14
0x0004: Command: 0006 Status ID: 0018
0x0008: Class: 07 Subclass: 80 Interface: 00 Revision: 03
0x000c: BIST: 00 Header Type: 80 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR mem 64bit addr: 0x00000000fc524000/0x00000010
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR empty (00000000)
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 01 Line: 03 Min Gnt: 00 Max Lat: 00
0x0050: Capability 0x01: Power Management
0x008c: Capability 0x05: Message Signaled Interrupts (MSI)
0:3:2: Intel Q45 PT IDER
0x0000: Vendor ID: 8086 Product ID: 2e16
0x0004: Command: 0005 Status ID: 00b0
0x0008: Class: 01 Subclass: 01 Interface: 85 Revision: 03
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR io addr: 0x00001c88/0x0008
0x0014: BAR io addr: 0x00001c7c/0x0004
0x0018: BAR io addr: 0x00001c80/0x0008
0x001c: BAR io addr: 0x00001c78/0x0004
0x0020: BAR io addr: 0x00001c40/0x0010
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 03 Line: 05 Min Gnt: 00 Max Lat: 00
0x00c8: Capability 0x01: Power Management
0x00d0: Capability 0x05: Message Signaled Interrupts (MSI)
0:3:3: Intel Q45 KT
0x0000: Vendor ID: 8086 Product ID: 2e17
0x0004: Command: 0007 Status ID: 00b0
0x0008: Class: 07 Subclass: 00 Interface: 02 Revision: 03
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR io addr: 0x00001c90/0x0008
0x0014: BAR mem 32bit addr: 0xfc526000/0x00001000
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR empty (00000000)
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 02 Line: 0a Min Gnt: 00 Max Lat: 00
0x00c8: Capability 0x01: Power Management
0x00d0: Capability 0x05: Message Signaled Interrupts (MSI)
0:25:0: Intel ICH10 D BM LM
0x0000: Vendor ID: 8086 Product ID: 10de
0x0004: Command: 0107 Status ID: 0010
0x0008: Class: 02 Subclass: 00 Interface: 00 Revision: 02
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR mem 32bit addr: 0xfc500000/0x00020000
0x0014: BAR mem 32bit addr: 0xfc527000/0x00001000
0x0018: BAR io addr: 0x00001820/0x0020
0x001c: BAR empty (00000000)
0x0020: BAR empty (00000000)
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 01 Line: 03 Min Gnt: 00 Max Lat: 00
0x00c8: Capability 0x01: Power Management
0x00d0: Capability 0x05: Message Signaled Interrupts (MSI)
0x00e0: Capability 0x13: PCI Advanced Features
0:26:0: Intel 82801JD USB
0x0000: Vendor ID: 8086 Product ID: 3a67
0x0004: Command: 0005 Status ID: 0290
0x0008: Class: 0c Subclass: 03 Interface: 00 Revision: 02
0x000c: BIST: 00 Header Type: 80 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR empty (00000000)
0x0014: BAR empty (00000000)
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR io addr: 0x00001840/0x0020
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 01 Line: 03 Min Gnt: 00 Max Lat: 00
0x0050: Capability 0x13: PCI Advanced Features
0:26:1: Intel 82801JD USB
0x0000: Vendor ID: 8086 Product ID: 3a68
0x0004: Command: 0005 Status ID: 0290
0x0008: Class: 0c Subclass: 03 Interface: 00 Revision: 02
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR empty (00000000)
0x0014: BAR empty (00000000)
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR io addr: 0x00001860/0x0020
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 02 Line: 0a Min Gnt: 00 Max Lat: 00
0x0050: Capability 0x13: PCI Advanced Features
0:26:2: Intel 82801JD USB
0x0000: Vendor ID: 8086 Product ID: 3a69
0x0004: Command: 0005 Status ID: 0290
0x0008: Class: 0c Subclass: 03 Interface: 00 Revision: 02
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR empty (00000000)
0x0014: BAR empty (00000000)
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR io addr: 0x00001880/0x0020
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 03 Line: 05 Min Gnt: 00 Max Lat: 00
0x0050: Capability 0x13: PCI Advanced Features
0:26:7: Intel 82801JD USB
0x0000: Vendor ID: 8086 Product ID: 3a6c
0x0004: Command: 0106 Status ID: 0290
0x0008: Class: 0c Subclass: 03 Interface: 20 Revision: 02
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR mem 32bit addr: 0xfc528000/0x00000400
0x0014: BAR empty (00000000)
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR empty (00000000)
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 03 Line: 05 Min Gnt: 00 Max Lat: 00
0x0050: Capability 0x01: Power Management
0x0058: Capability 0x0a: Debug Port
0x0098: Capability 0x13: PCI Advanced Features
0:27:0: Intel 82801JD HD Audio
0x0000: Vendor ID: 8086 Product ID: 3a6e
0x0004: Command: 0106 Status ID: 0010
0x0008: Class: 04 Subclass: 03 Interface: 00 Revision: 02
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 08
0x0010: BAR mem 64bit addr: 0x00000000fc520000/0x00004000
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR empty (00000000)
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 01 Line: 03 Min Gnt: 00 Max Lat: 00
0x0050: Capability 0x01: Power Management
0x0060: Capability 0x05: Message Signaled Interrupts (MSI)
0x0070: Capability 0x10: PCI Express
0:29:0: Intel 82801JD USB
0x0000: Vendor ID: 8086 Product ID: 3a64
0x0004: Command: 0005 Status ID: 0290
0x0008: Class: 0c Subclass: 03 Interface: 00 Revision: 02
0x000c: BIST: 00 Header Type: 80 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR empty (00000000)
0x0014: BAR empty (00000000)
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR io addr: 0x000018a0/0x0020
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 01 Line: 03 Min Gnt: 00 Max Lat: 00
0x0050: Capability 0x13: PCI Advanced Features
0:29:1: Intel 82801JD USB
0x0000: Vendor ID: 8086 Product ID: 3a65
0x0004: Command: 0005 Status ID: 0290
0x0008: Class: 0c Subclass: 03 Interface: 00 Revision: 02
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR empty (00000000)
0x0014: BAR empty (00000000)
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR io addr: 0x000018c0/0x0020
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 02 Line: 0a Min Gnt: 00 Max Lat: 00
0x0050: Capability 0x13: PCI Advanced Features
0:29:2: Intel 82801JD USB
0x0000: Vendor ID: 8086 Product ID: 3a66
0x0004: Command: 0005 Status ID: 0290
0x0008: Class: 0c Subclass: 03 Interface: 00 Revision: 02
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR empty (00000000)
0x0014: BAR empty (00000000)
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR io addr: 0x000018e0/0x0020
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 03 Line: 05 Min Gnt: 00 Max Lat: 00
0x0050: Capability 0x13: PCI Advanced Features
0:29:7: Intel 82801JD USB
0x0000: Vendor ID: 8086 Product ID: 3a6a
0x0004: Command: 0106 Status ID: 0290
0x0008: Class: 0c Subclass: 03 Interface: 20 Revision: 02
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR mem 32bit addr: 0xfc529000/0x00000400
0x0014: BAR empty (00000000)
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR empty (00000000)
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 01 Line: 03 Min Gnt: 00 Max Lat: 00
0x0050: Capability 0x01: Power Management
0x0058: Capability 0x0a: Debug Port
0x0098: Capability 0x13: PCI Advanced Features
0:30:0: Intel 82801BA Hub-to-PCI
0x0000: Vendor ID: 8086 Product ID: 244e
0x0004: Command: 0107 Status ID: 0010
0x0008: Class: 06 Subclass: 04 Interface: 01 Revision: a2
0x000c: BIST: 00 Header Type: 01 Latency Timer: 00 Cache Line Size: 00
0x0010: 00000000
0x0014: 00000000
0x0018: Primary Bus: 0 Secondary Bus: 17 Subordinate Bus: 17
Secondary Latency Timer: 20
0x001c: I/O Base: f0 I/O Limit: 00 Secondary Status: 2280
0x0020: Memory Base: fff0 Memory Limit: 0000
0x0024: Prefetch Memory Base: fff1 Prefetch Memory Limit: 0001
0x0028: Prefetch Memory Base Upper 32 Bits: 00000000
0x002c: Prefetch Memory Limit Upper 32 Bits: 00000000
0x0030: I/O Base Upper 16 Bits: 0000 I/O Limit Upper 16 Bits: 0000
0x0038: Expansion ROM Base Address: 00000000
0x003c: Interrupt Pin: 00 Line: ff Bridge Control: 0004
0x0050: Capability 0x0d: PCI-PCI
0:31:0: Intel 82801JDO LPC
0x0000: Vendor ID: 8086 Product ID: 3a14
0x0004: Command: 0007 Status ID: 0210
0x0008: Class: 06 Subclass: 01 Interface: 00 Revision: 02
0x000c: BIST: 00 Header Type: 80 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR empty (00000000)
0x0014: BAR empty (00000000)
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR empty (00000000)
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00
0x00e0: Capability 0x09: Vendor Specific
0:31:2: Intel 82801JD AHCI
0x0000: Vendor ID: 8086 Product ID: 3a02
0x0004: Command: 0007 Status ID: 02b0
0x0008: Class: 01 Subclass: 06 Interface: 01 Revision: 02
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR io addr: 0x00001ca8/0x0008
0x0014: BAR io addr: 0x00001c9c/0x0004
0x0018: BAR io addr: 0x00001ca0/0x0008
0x001c: BAR io addr: 0x00001c98/0x0004
0x0020: BAR io addr: 0x00001c00/0x0020
0x0024: BAR mem 32bit addr: 0xfc52a000/0x00000800
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 02 Line: 0a Min Gnt: 00 Max Lat: 00
0x0080: Capability 0x05: Message Signaled Interrupts (MSI)
0x0070: Capability 0x01: Power Management
0x00a8: Capability 0x12: SATA
0x00b0: Capability 0x13: PCI Advanced Features
0:31:3: Intel 82801JD SMBus
0x0000: Vendor ID: 8086 Product ID: 3a60
0x0004: Command: 0001 Status ID: 0280
0x0008: Class: 0c Subclass: 05 Interface: 00 Revision: 02
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
0x0010: BAR mem 64bit addr: 0x00000000fc52b000/0x00000100
0x0018: BAR empty (00000000)
0x001c: BAR empty (00000000)
0x0020: BAR io addr: 0x00001c20/0x0020
0x0024: BAR empty (00000000)
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 17aa Product ID: 3048
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 02 Line: 0a Min Gnt: 00 Max Lat: 00
